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BIO Ultrasound in Medicine. A 2.00-MHz sound wave travels

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 74P Chapter 16

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 74P

BIO Ultrasound in Medicine. ?A 2.00-MHz sound wave travels through a pregnant woman’s abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward the sound receiver as the heart beats. The reflected sound is then mixed with the transmitted sound, and 72 beats per second are detected. The speed of sound in body tissue is 1500 m/s. Calculate the speed of the fetal heart wall at the instant this measurement is made.

Step-by-Step Solution:
Step 1 of 3

Solution 74P If v is the magnitude of the heart wall speed,V is a speed of sound and f h is the frequency the heart receives (and reflects),f is ori0inal frequency and f is reflecte back. Consider here heart is moving observer and device is stationary source. f = [(V + v)/v]f h 0 In Second part Heart is moving source and device is stationary observer. f= [v/(V v)]f h From above two equation we can defines beats by Beats: f B f 0 = f f0(V +0v)/(V...

Step 2 of 3

Chapter 16, Problem 74P is Solved
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Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

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BIO Ultrasound in Medicine. A 2.00-MHz sound wave travels

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